president obama and mississippi senator wicker was intercepted at a mail processing facility after tests indicated the poisonous substance. the president was informed of the situation. >> any time a suspicious powder is located in a mail facility it is tested. and i would underscore that the mail is screened. the mail sent here is screened and these tests are undertaken at remote sites to mitigate the risk both to those recipients and to the general population. >> reporter: the fbi says results of the additional testing on the envelope could be known later today. >>> texas authorities could file more charge today in the case of three high-profile killings that disgraced former justice of the peace and his wife are in jail. kim williams confessed to her role in the shootings of a prosecutor, a d.a., and his wife. and claimed her husband eric was the trigger man in all three. she's charge with capital murder. eric williams is in jail on a terroristic threat charge but that could be upgraded. investigators say an e-mail threatening more attacks was traced back to him. that certainly was a m